Intermediate Solutions Engineer

SergioRangel

I |

Bridging technical depth with client strategy, delivering reliable integrations, scalable solutions, and measurable impact for enterprise clients.

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SR
SQL
APIs
WordPress
Python
OAuth

About me

Turning complex technical problems into elegant solutions

I'm a Computer Science graduate from Western University with hands-on experience across fintech, enterprise software, and academic research. As an Intermediate Solutions Engineer at Mako Fintech, I work at the crossroads of client success and technical delivery, owning implementations, pre-sales evaluations, and production reliability.

Fluent in English and Spanish, I bring both engineering rigour and clear communication to every engagement.

0+
Years of experience
0+
Customer evaluations
0%
Incident reduction

Career

Experience

Mako Fintech

Apr 2025 – Present

Intermediate Solutions Engineer

Mar 2026 – Present
  • Promoted within less than a year, taking on broader ownership across client implementations, technical evaluations, and platform reliability.
  • Acted as technical lead across multiple customer evaluations, translating requirements into validated solution designs that supported deal progression.
  • Diagnosed production issues via log analysis, and API tracing, achieving a reduction in repeat incidents.

Solutions Engineer

Apr 2025 – Mar 2026
  • Led technical implementations across multiple asset management clients, delivering customized data workflows and platform configurations aligned with client operating models.
  • Implemented webhook integrations enabling secure, real-time platform connectivity.
SQLOAuthWebhooksPre-SalesAPI Tracing

EMCO Corporation

Software Engineer Intern

May 2023 – May 2024
  • Sustained 99.9% uptime for backend services processing thousands of daily transactions across procurement and distribution workflows.
  • Built RESTful APIs and data integrations in Python, Java, and .NET, improving downstream data accuracy by ~20%.
  • Refactored error handling and logging for Linux-based batch workflows, reducing manual intervention and improving operational reliability.
PythonJava.NETREST APIsLinux

Ivey Business School

Programmer Intern

May 2022 – Dec 2022
  • Automated data collection pipelines with Python, NumPy, and BeautifulSoup, cutting manual preparation effort by 45%+.
  • Designed APIs and data pipelines supporting analytics and reporting for academic researchers across multiple departments.
  • Consolidated large datasets to improve data integrity and standardize reporting outputs.
PythonNumPyBeautifulSoupPandasData Pipelines

Toolkit

Skills & Technologies

Languages

PythonJavaScriptJava C / C++C#SQLHTML/CSS

DevOps & Cloud

LinuxKubernetesGitHub REST APIsOAuthWebhooks

Libraries & Frameworks

NumPyPandasBeautifulSoup BootstrapJUnit.NET

Tools & Process

JiraPostmanAirbrake VS CodeSlackPre-SalesPost-Sales

Work

Projects & Initiatives

🐾
Nonprofit · Dec 2022 – Present

Puppies4Seniors

Co-founded a nonprofit delivering pet-assisted community programs for seniors. Scaled program reach and volunteer participation by 50% within the first year. Designed and deployed the public web platform.

Web PlatformLeadershipCommunity
Co-Founder & Lead Tech Developer
☕
Personal Project · Jul – Aug 2025

CoffeeCompass

Built an interactive Cafe Finder web app enabling users to discover nearby cafes through a dynamic UI. Implemented search handling, dynamic result rendering, and cross-browser usability.

JavaScriptHTML/CSSGoogle Maps APIGit
Solo Developer
🎓
Education · Sept 2020 – Apr 2025

Western University: BSc Computer Science

Completed a Computer Science degree with coursework in Operating Systems, Architecture, OOP, and Software Project Management. VP of Finance for Western Developers Society.

OSOOPArchitectureLeadership
VP Finance, Western Developers Society

Let's connect

Got a challenge
worth solving?

Whether it's a pre-sales deep dive, a tricky integration, or an open role. I'd love to talk.

sergiorangel247594@gmail.com linkedin.com/in/sergioarangel02 (226) 973-4841